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Finding the Fourth Proportional to 16,905.54, 23,329.71 and 9,453.54

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Solution

The fourth proportional to 16,905.54, 23,329.71 and 9,453.54 is: 13,045.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.54 : 23,329.71 = 9,453.54 : x
  2. Step 2: Convert to fraction form
    16,905.54/23,329.71 = 9,453.54/x
  3. Step 3: Cross multiply
    16,905.54x = 23,329.71 × 9,453.54
  4. Step 4: Simplify right side
    16,905.54x = 220,548,346.67
  5. Step 5: Solve for x
    x = 220,548,346.67/16,905.54
  6. Step 6: Final answer
    x = 13,045.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.